6-23.6-24.6-25.6-26.6-27.6-28.While performing the guided bendtest, to fulfill the requirements,how many degrees must you bend thepiece?1.90°2.135°3.180°4.215°What test is used for determiningthe internal quality of the weldmetal by detecting slag inclusions,lack of fusion, and gas pockets?1.Nick-break2.Guided-bend3.Liquid penetrant4.Magnetic particleWhile performing the nick-breaktest, you notice that there arefive gas pockets in 1 square inchof weld. The size of each of thepockets is less than 1/16 inch attheir widest point. This is anunsatisfactory weld.1.True2.FalseLearning Objective: Identify theGMA-GTA welding processes andtechniques.In the GTA-GMA welding process,what type of current flow producesa wide, shallow weld?1.DCSP2.DCRP3.ACHF4. ACSPAs an exception to the generalrule, DCRP is used with the GMAprocess to weld1.aluminum and magnesium2.copper and cast-iron3.stainless steel and steel4.copper and steelWhat type of torch is used to weldlight-gauge materials at arelatively low current setting?1.A water-cooled GMA2.A water-cooled GTA3.A helium-cooled GMTA4.A helium-cooled GTA6-29.For butt welding, the electrodeshould extend past the gas cup forwhat distance?1.A distance equal to itsdiameter2.A distance equal to 1 1/2 itsdiameter3.A distance equal to twice itsdiameter4.A distance equal to 2 1/2 itsdiameter6-30.Tungsten electrodes are color-coded6-31.6-32.6-33.at one end. What does the colorbrown indicate about the electrode?1.It is a pure tungsten rod2.It is a 1% thoriated tungstenrod3.It is a 2% thoriated tungstenrod4.It is alloyed with zirconiumWhat gases are most often used asGTA-GMA welding gases?1.Xenon and radon2.Neon and krypton3.Argon, helium, or a mixture ofthe two4.Carbon dioxide and bromineThe primary difference between theregulators used for oxyfuel weldingand GTA/GMA welding is theirworking pressures.1.True2.FalseWhen setting gas volume on aflowmeter, you should read thescale in which of the followingways ?1.By aligning the bottom of theball with the cfh required2.By aligning the top of the ballwith the cfh required3.By aligning the center of theball with the cfh required4.By noting the verticalpositions of the gas flowbetween the pressure gauge andthe tank nozzle34